greater function(Arithmetic) not working in graphical mapping

Hi SapAll.

in an Idoc To File Interface i have got a requirement where i need to compare occurance of two child segments G02,G02 Under parent Segment G01 and then determine the occurance of target Record Structure.

the IDOC structure is G01

G02

G03

MAPPING IS like G01->count->

greater(Arithmetic Function) IF THEN G02 else GO3 ->TARGET RECORD

G02->count->

when i use Equals(Boolean Function) then it is comparimg occurance of two child and if equals then created target node as per the occurance of source node G02 but when i use Greater(Arithmetic),its not working .

can any one help me how i can achieve this ?

regards.

Varma